A script to automatically login to an account once a month - autologin

Question

DynDNS requires a login to an account once a month to keep the free domains active. Is it possible to write simple script (in Linux) to do this? The login page is this.

Answer 1

If you want to write it in python and host the script on a server such that it runs indefinetaly, you can use the Mechanize library to log in for you and the time built in to do it once a month.
Mechanize: http://stockrt.github.io/p/emulating-a-browser-in-python-with-mechanize/
Time: http://docs.python.org/2/library/time.html
Free hosting: https://www.heroku.com/

Answer 2

You mean like this:
import re
import mechanize
username = "username"
password = "password"
success_verification_text = "Log Out"
br = mechanize.Browser()
response = br.open("https://account.dyn.com/")
#select the login form
for form1 in br.forms():
form = form1
break;
br.select_form(nr=0)
form["username"] = username
form["password"] = password
response = br.submit()
if success_verification_text in response.read():
print "SUCCESS"
else:
print "FAILED"
https://gist.github.com/mandarl/6007396

Answer 3

If you want to login successfully you will need to select login form.
Form ID changes between requests (loginNNN) so it's best to search for it by name.
Working example (requires mechanize):
import re
import mechanize
username = "xxx"
password = "xxxxxx"
success_verification_text = "Log Out"
br = mechanize.Browser()
response = br.open("https://account.dyn.com/")
# select the login form
cnt = 0
for frm in br.forms():
if str(frm.attrs["id"]).find("login") != -1:
form = frm
break
cnt += 1
br.select_form(nr=cnt)
form["username"] = username
form["password"] = password
response = br.submit()
if success_verification_text in response.read():
print ("SUCCESS")
else:
print ("FAILED")